Automobile control pedal



W. 0. BISCHO'FF.

AUTOMOBILE CONTROL PEDAL.

APPLICATION FILED APR. 19, 1920.

.Lgg g? Patented m 17, 1922.

T0 FUEL SUPPLY CONTROL WITNESSES: Y I ZNVENTOR Patented ea 317, 922.

NWEE Wares- Maren PATENT @FFHQE;

,-W; Im fnIsorr'oirr, or cnrcaeo, ILIIn'oIs.

To all whom it may concern:

Be it known that I, WALTER 0. Electron", a citizen of the United States, and a resident of the city of Chicago, county of Cook and the State of Illinois, have invented certain new and useful Improvements in Automobile Control Pedals, of which the following is a specification, reference being had to the accompanying drawings, forming a' part thereof.

This invention relates to improvements in combined accelerator and pedal operated clutch of brake mechanism and particularly in the constructionand arrangement of the parts. It consists in the elements and features of construction shown and described, as indicated in the claims.

In the drawings 1 Figure 1 is a perspective view of the device mounted in position relative to the engine casing-of an automobile.

Figure 2is an elevation in part section of the foot pedal member and one of the cams as seen from the side.

Figure 3 is a fragmental plan view showing the two cams.

Figure 4 is a section at the line, 44, on Figure 3. I

The drawings show a foot board, 1, of an automobile, an engine and transmission box thereof, fragmentally indicated at 2, with a shaft, 3, protruding from the transmission box, 2, through a sleeve, 4:, which has secured to its exposed end for rocking it a lever, 5, the shaft, 3, being provided with a le ver, 6, for imparting a similar motion to it. Both said levers which extend obliquely up wardly and forwardly of their fulcrums and are normallyfitted with rigid foot pedals, are connected, one with the brake mechanism and the other to the clutch mechanism, which mechanisms are housed within the transmission box, 2.

One of the principal objects of the pres-v ent invention is to interconnect the fuel supply control of the engine with one or the other of the levers just mentioned, and either one is equally Well adapted for the purpose. The means herein shown consists of mounting rigidly to the end of'the selected lever, 6, a sleeve,7, of suitable length, within which extends a rotatable spindle, 10, to the upper end of which is secured a foot pedal, 8, of special construction. The pedal may be understood to be made of spring steel to af-I ford whatever advantages; may be derivedpurpose the lever, 12, is

' AniI'qaIonIIn conrno'nrnnan es imate g a n 1mm. sem no. 374,920.

' therefrom; it is shaped to conform somewhat "to the contour of the foot of the op-' 'erator and has engaging lugs, 8 and 8", lo-

cated at either side thereof, the lug, 8, being adjustably mounted to accommodate shoes of variant widths.

The pedal, so mounted is capable of thrust ing the lever 6, for operating the mechanism associated therewith, and also for rotating,

the spindle, 10, which has an eccentric cam,

11, keyed to the lower end thereof.

lln contact with the cam, 11, and in a plane parallel to the thrust thereof is'a cam-lever,

12, for controlling the fuel supply. It is mounted in a bracket, 13, for swinging later-' ally toward and from, and ina plane transverse to that of the rotation of the cam, 11.

The fuel control lever, as seen in Figure 3, comprises a straight portion mounted parallel -with the spindle, 10, and having its end curved away as seen at 14:; extending at an angle of about 90 degrees from the straight portion thereof is an arm, 15, con-.

nected to the fuel supply control device (not shown) by'the member, 16, leading thereto; the controldevice having a spring of usual form which supplies'the desired tension in the member, 16, and thereby holds the member, 12, in opera'tive engagement against the contact member, 11. y

In the ordinary running of the engine, with the pedal, 8, in its highest position and the automobile in motion, the cams, 11 and position. shown inthe draw- 12, stand at the n ings in full line, (see 'Figurefsfif-and 4), where the cam, 12, rests againstthe mid portion, 11, of the cam, 11. If now it be desired to change the rate of supply offuel to the carbureter, to either accelerate or retard the engine, the cam, 11, is rotated so that it will contact the lever, 12, at the highest point, 11 of the former, thus supplying a maximum quantity, while a partial rotation in the opposite direction will diminish the supply of liquid to the carbureter. For the purpose of limiting the rocking movement of the cam, 11, and prevent its accldental dislodgment, a stop pin, 8, mounted on the lower side of the foot pedal, contacts the stop, 7, extending radially from the nonrotatable sleeve, 7.

Ordinarily when the pedal is depressed, the fuel supply may be lessened, and for that rovided with the curved portion, 14, herein hefore mentioned, and when the pedal is thrust downwardly,

- spring andoccupy a the engine.

nected It will, of course, be understood that the fuel control cams are adapted to be connected for co-operating with either the clutch or the brake as desired, the claims be so construed.

I claim:

1. In a motor car having an engine with a fuel supply control, road wheels with brake mechanism therefor, and driven by the engine through a clutch mechanism, an operating pedal forone of said mechanisms, a foot-board having an opening, and said pedal having a stem extending through said opening, the pedal being fulcrumed for thrusting movement of its stem through the opening, and being mounted to rock about the axis of said stem, and operative connections disposed at the under side of the foot-board arranged to transmit the rocking movement of the pedal to the fuel supply control.

2. In combination with a motor car having an engine with a fuel supply control; road wheels with brake mechanism therefor, and driven by the engine through clutch 'mechanism, an operating pedal for one of said mechanisms. having a stem with a cam thereon mounted for thrust and rocking about the axis of said stem, and a fuel control cam lever fulcrumed adjacent to the said stem, and thereby interconnected for co-operating to control the fuel supplyand said pedal-operated mechanism.

3. In combination with a motor car having an engine with a fuel supply control; road:

wheels with brake mechanism therefor, and driven by the engine,'an operating pedal having a stem with a cam thereon, mounted for thrust and rocking about the axis of said stem, and a fuel-control cam-lever fulcrumed adjacent to the same stemand in contact with the cam on said stem, thereby inter-confor co-operating to control the fuel supply and said pedal-operated mechanism.

4. In a motor car in combination with a clutch-operating pedalhaving a stem and mounted for thrust and rocking about the axis of the stem, a fuel control-lever-fuland it is intended that crumed adjacent to the path of said thrust, said stem and lever having co-operating cams by which both the thrust and the rocking of the pedal control the movement of the lever.

5. In a motor car, in combination with a. clutch-operating pedal having a stem mounted for thrust and rocking about the axis of the stem. a fuel-supply control-lever fulcrumed adjacent to the path of said thrust; acam lever integral with the fuel supply control lever, mounted for oscillating toward and from the stem in the plane thereof, and a contact member secured to the end of said stem for co-operating with the said cam lever.

6. In a motor car, in combination with a pedal adapted to control the movement of the vehicle and having a stemmounted to swing about the pedal fulcrum and to rockabout its own axis; a fuel supply control lever fulcrumed adjacent to the stem, and

an eccentric cam secured to and mounted for rotation with the stem.

7. In a motor car in combination with a clutch-operating pedal having a stem mounted for thrust and rocking aboutthe axis of the stem; a fuel supply control lever fulcrunaed "adjacent to the path of said thrust; a foot pedal secured to the said stem for the actuation thereof; and a clip adjustably secured to the said pedal for varying the width of the tread of the pedal.

8. In a motor car. in combination with a clutch-operating-mechanism, including a control lever; a sleeve rigidly secured to the control lever for thrust thereof; a stem rotatably mounted in said sleeve; a. contact piece secured to the stem and associated with the sleeve for thrust thereof, and a fuel-supply control cam lever arranged to be operated by the said contact piece.

9. In a motor car. in combination with a clutch-operating-pedal having a stem mounted for thrust and rocking about the axis of the stem; a fuel-supply control-lever fulcrumed adjacent to the path of said stem, and a stop pin secured to the pedal co-operating with a stationary stop for limiting the rocking of said-pedal and stem.

In testimony whereof, I have hereunto set my hand at Chicago, Illinois, this 9th day 

